Hello, I am new to pyqtgraph and python in general and i was wondering if you could help me out a bit. I have an array of dicom images that I am able to display using pyqtgraph.image(array) where 'array' contains my data and i am able to scroll through them using the slider. However, i am wondering if there is a way that I can draw a line through these images between two arbitrary points. For example, in the data i am working with currently I have two 3d points: (258,461,52) and (258,0,52). In this case, it would be a vertical line at x=258 and at the 52 slice in the image set. Is there a way to plot this line within the window that displays with the original pyqtgraph.image(array) command? Also, it is not guaranteed that this line will stay within the same image slice or be vertical/horizontal as it depends on arbitrary angles in the xy and yz plane. I have tried using the GLLinePlotItem but it is giving me trouble as im getting errors concerning my pos argument. I expect that this comes for not being well enough versed in python and not understanding the arguments. Any help would be greatly appreciated. I am sorry if this is too vague I can explain further if necessary. Jake
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